Hydroponic Ventilation - Pre Filters
Pre-filters cover your carbon filter and help to prevent airborne particles such as dust and small insects from clogging up the carbon. Using a pre-filter will help prolong the life of your carbon filter. You can also place them over your inlet ducting and pinch one side closed to prevent dust and bugs from entering your grow room. Can-Lite Pre-filters can be reused by washing them in water and hanging them out to dry.